<template>
  <div class="count">
    <h1>当前求和为:{{sum}}</h1>
    <h3>当前求和放大10倍为:{{bigSum}}</h3>
    <h3>我在{{school}},学习{{subject}}</h3>
    <h3 style="color: red">Person组件的总人数是:{{personList.length}}</h3>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="increment(n)">+</button>
    <button @click="decrement(n)">-</button>
    <button @click="incrementOdd(n)">当前求和为奇数再加</button>
    <button @click="incrementWait(n)">等一等再加</button>
  </div>
</template>

<script>
import {mapState, mapGetters, mapActions, mapMutations} from 'vuex'
export default {
  name: 'count-com',
  data() {
    return {
      n: 1,    // 用户选择的数字
    }
  },
  methods: {
    ...mapMutations({increment: 'AddHandler', decrement: 'SubHandler', incrementOdd: 'OddHandler'}),

    ...mapActions({incrementWait: 'wait-Handler'}),
  },
  computed: {
    ...mapState(['sum','school','subject', 'personList']),
    ...mapGetters(['bigSum'])
  },
}
</script>

<style lang="sass">
$margin-left: 10px

button
  margin: $margin-left
</style>